Quickbooks Online: push billable rate with time entry

Currently the way that this integration works is it pushes a $0 time entry to Quickbooks, requiring a lot of manual labor to prep an invoice before being sent out. It would be nice if each client in FreshService could have their billable rate set, and when Freshservice pushes out the time entry they are ready to converted to an invoice. Most other ticketing systems geared for MSPs can do this.